1、2800 100789 (947599 )764 36(1527623) (932521)9 723(521504)25 (3921)(3966)5071363 498 38412331 37(7+6) 30 16(17-8)3 28(5+9632) 81(72-54 )9 571256035 8486401612 960( 15003245 ) 192(5438)6 (12+24+80)50 32(25+125)123181233+85123 25(24+16 ) 17899+178 (140-70)54 63+84242 4907+24545+24012 157+857 (46-20 )3
2、0-9025274 (404)25 240080142 108(8336060 ) (42048)(375345) 290(343+99) 142549+14 75425 1676766 720362 9953+53 4502(16 9 )245(45+39) 125(84)5 4125-25420( 205198)4 460(29183) (960400)70(140-70) 54 63+84242 4907+245266-110 157+857 (46-20)30-90(404)25 24008014 2 108(8336060)(42048)(375345) 290(343+99 ) 1
3、42549+14 1676766 9953+53 4502(169 )245(45+39) 125(8 4)5 4125-25420(205198)4 460(29 18 3) (960400 )70 45+24012 124+78+22 100-35-25 (140-70) 54 63+84242 4907+245266-110 (46-20)30-90 157+857 (404)25 240080142 108(8336060)(42048)(375345) 290(343+99) 14254 9+14 1676766 9953+53 4502(169 )245(45+39) 4125-2
4、5 420(205198)X4460(29183 ) (960400)70 43+3155 426-2793 98-194+62 51+1217 843-1368 (32+28)6 32513(266-250)55+720(40-35) (220-180)8 36(287+23) (38+42)(52535) (135-72 )7 7217528(2466-32) 340-240205 (58+12)(968)10663 248302 52430 36427 3 (13525)406 18(7958 )27(33889-19)34 (640+75015 ) 15 (72-57 )38 892-
5、( 9056 2) 69(800 700)5 254+320 822+59 328+125 85+324 813+311 13515+26 107-353 2063-1284 (482-42)22-17 573-12 16812-4812 18213+20813 52521-37821 3256-6 48+426-12 60-(303+3)3113-22819 (15622432)80 345(128-5319) 776-( 736152 ) 802+1005 45-2034140-205+25 2030+2040 25(30+10)80040-40040 600(12060) (26+14)
6、70(26+14)(70-40) 90(301550) (35+45)(90-10)610-(21+29) 25(22+263) 80(32+8)3003000-(32+8)30 30169-(60+9) 320-(120+254) 36(3+6)2 180(3612)+6 45015+103 (40+18030)2 (240+180)(302) 800-8008030800-(706+180) 65(40+203) 36+360125121+795 456+356 675-375 398-639 32678-32668 12090-11090125(8+4) 12(40-5) 527+635
7、649-149 23134-3423 6848+6852 48101-48 655+355 492587932+7968 67101-67 2567-567 (75255)40 280025480 (380804)606550+3550 270+3870 4(2565+2528)125474725 340(120408) 45(720195719)86+4500+(208836)2 120-36418+35 (58+37)(64-95).(8020+80)4 36040+10 4020-200(80-25)X2 (350-80 )9 360(126)5 288(2614)8 5006-(502-80) (10512 635)25 864(2723)12 (453816)24 500(240386) 64(8742) 15 (845153 )16 12(4928)7 450(8448 )12 (58+37)(64-95) 95(64-45)